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IGMP Snooping Membership Table
Index
This field indicates the index of the entry.
Port
This field indicates the port of the entry.
Multicast
Group
This field indicates the multicast address of the entry.
VID
This field indicates the vlan of the entry.
Timeout
This field indicates the remaining time in the table of the entry.
Host IP
This field indicates the host IP which joins the multicast group.
6.3
VLAN
6.3.1
Port Isolation
The port isolation is a port-based virtual LAN feature. It partitions the switching ports into virtual
private domains designated on a per port basis. Data switching outside of the port’s private
domain is not allowed. It will ignore the packets’ tag VLAN information.
This feature is a per port setting to configure the egress port(s) for the specific port to forward its
received packets. If the CPU port (port 0) is not an egress port for a specific port, the host
connected to the specific port cannot manage the Switch.
If you wish to allow two subscriber ports to talk to each other, you must define the egress port
for both ports.
CPU
refers to the Switch management port. By default it forms a VLAN with all
Ethernet ports. If it does not form a VLAN with a particular port then the Switch cannot be
managed from that port.
Example:
If you want to allow port-1 and port-3 to talk to each other, you must configure as
below:
L2SWITCH(config)#interface 1/0/1
L2SWITCH(config-if)#port-isolation ports 3
L2SWITCH(config-if)#exit
; Allow the port-1 to send its ingress packets to port-3.
L2SWITCH(config)#interface 1/0/3
L2SWITCH(config-if)#port-isolation ports 1
L2SWITCH(config-if)#exit
; Allow the port-3to send its ingress packets to port-1
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